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  4. Helium Blockchain API
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Helium Blockchain API

The Helium Blockchain API offers developers seamless access to IoT blockchain data, suitable for tracking hotspots, accounts, and rewards.

Developed by Helium Foundation

Live API
99.80%Uptime
200msLatency
320Stars
No AuthAuth
NoCredit Card
RESTStyle
v1Version

Reference

API Endpoints

Endpoints

Available routes, request structures, and code examples.

Retrieves information about Helium blockchain hotspots

Endpoint URL
https://api.helium.io/hotspots
Code Example
curl -X GET 'https://api.helium.io/hotspots'
Request Payload
{
  "limit": 10,
  "min_time": "-30 days"
}
Expected Response
{
  "data": [
    {
      "name": "Urban Miner",
      "status": "online",
      "address": "11aBcD...",
      "reward_scale": 0.75,
      "last_poc_challenge": 1689782400
    }
  ]
}
Version:v1
Limit:30 requests/minute

Integration

Quick Start

cURL ExampleREST
curl -X GET "https://api.helium.io/v1/accounts/13yC4Cp6gT2jUmkwSs9uVTEWQhWLnDYp4xPAFQvncZQ5GUVho5e"

Docs

Technical Documentation

What this API does

The Helium Blockchain API provides developers with access to a wide range of data from the Helium IoT blockchain network. Key features include querying hotspots, accounts, transactions, blocks, rewards, and validators via a RESTful interface.

How it works

The API supports pagination and filtering capabilities for efficient, targeted data retrieval. Responses are returned in JSON format, which simplifies integration across popular programming languages like JavaScript, Python, and Go.

Since Helium migrated to the Solana blockchain in 2023, verifying endpoint status before production deployment is recommended to ensure data accuracy and availability.

Authentication

No authentication is required to use the Helium Blockchain API. All endpoints are publicly accessible, allowing developers to integrate the API without needing API keys.

Example usage

  • /v1/hotspots - Retrieves a list of all hotspots on the Helium network.
  • /v1/accounts/{address} - Fetches details of a specific account by address.
  • /v1/rewards/{address} - Retrieves rewards data associated with a specific account.
  • /v1/transactions/{tx_id} - Gets details about a specific transaction using its ID.
  • /v1/blocks/{block_height} - Retrieves information about a specific block.

Limits

There are no documented rate limits for the Helium Blockchain API. Requests are generally handled efficiently.

Ideal use cases

  • Developing applications to track IoT hotspot performance.
  • Creating integrations for analyzing account rewards in the Helium network.
  • Building tools to visualize blockchain transactions for IoT applications.
  • Integrating Helium data into other blockchain or IoT-based services.

Examples

Real-World Applications

  • Building IoT applications that track hotspot performance and coverage
  • Creating dashboards for Helium network rewards and diagnostics
  • Monitoring account balances and transaction histories
  • Integrating blockchain data into asset tracking and logistics systems
  • Researching blockchain validator statistics and network health

Evaluation

Advantages & Limitations

Advantages
  • ✓ Free and open access with no API key required
  • ✓ Comprehensive data coverage including hotspots, accounts, blocks, and rewards
  • ✓ Supports efficient pagination and filtering of large datasets
  • ✓ Easy JSON format for cross-language compatibility
Limitations
  • ✗ Endpoint stability can vary post-migration to Solana blockchain
  • ✗ No official SDKs available, requiring manual integration
  • ✗ Rate limits may restrict high-frequency query needs
  • ✗ Limited documentation examples for advanced queries

Support

Frequently Asked Questions

Important Notice

Verify Before You Decide

Last verified · Apr 30, 2026

The details on this page — including pricing, features, and availability — are based on our last review and may not reflect the provider's current offering. Providers update their products frequently, sometimes without prior notice.

What may have changed

Pricing Plans
Features & Limits
Availability
Terms & Policies

Always visit the official provider website to confirm the latest pricing, terms, and feature availability before subscribing or integrating.

Check official site

External Resources

Documentation Official Website Pricing Details Postman Collection

API Specifications

v1
Pricing Model
Free tier only
Credit Card
Not Required
Response Formats
JSON
Supported Languages
5 Languages
SDK Support
REST Only
Rate Limit

60 requests per minute

Time to Hello World

Less than 10 minutes

Free Tier

Unlimited free access with no API key and rate limited to 60 requests per minute.

Best For

Developers building IoT solutions and data analysts needing Helium blockchain insights.

Not Ideal For

Applications requiring guaranteed SLA or dedicated support.

Tags

#rewards#coverage-map#solana#hnt#hotspot#helium#iot#blockchain

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